Our semi-submersible crane vessel (SSCV) Hermod was built in Japan in 1978 by Mitsui Engineering & Shipbuilding Company Ltd. Hermod is 154 meters (505 feet) long and 86 meters (282 feet) wide. Its draft is currently 36 feet, but during our work we take in ballast water to increase the draft to 82 feet. This principle is known as semi-submersible. Hermod is capable of a tandem lift of 8,100 t (9,000 st).


Length overall154 m505 ft
Length of vessel137 m450 ft
Width86 m282 ft
Depth to workdeck42 m138 ft
Draft11.5 - 28.2 m38 - 92 ft
GRT73,877 t-
NRT22,166 t-

Accommodation / Helicopter Deck

The living quarters are equipped to accommodate 371 people. All quarters have heating and air conditioning facilities. The helicopter deck is suitable for a Sikorsky S-92.

Life-saving / Fire-fighting Equipment

Hermod's life-saving and fire-fighting equipment is in accordance with the latest Class and IMO requirements.

Propulsion / Power

Propulsion by two electrically-driven, controllable pitch propellers of 4,400 kW each. Power supply by seven diesel-powered main generators of 2,765 kW each.

Mooring System

12 Delta Flipper anchors of 22.5 tons each, on wire ropes of 2,400 meters (8,000 ft) long. Minimum breaking strength 386 t.

Diving System

Containerized saturation diving system with diving bell can be made available.

Port Side Crane

Main hoist guyed4,000 st26-39 m86-128 ft
Main hoist revolving3,000 st26-30.5 m86-100 ft
Auxiliary hoist660 st29.6-81 m97-266 ft
Whip hoist80 st33.9-110 m111-361 ft

Main hoist lifting height 93 m (305 ft) above work deck. Lowering depth of auxiliary hoist up to 1,500 m (5,000 ft) below work deck at minimum radius.

Starboard Crane

Main hoist guyed5,000 st24-40 m80-131 ft
Main hoist revolving5,000 st24-32 m80-105 ft
1st Auxiliary hoist1,000 st27.2-80 m89-262 ft
2nd Auxiliary hoist660 st30.8-101 m101-331 ft
Whip hoist300 st34.4-113.2 m113-371 ft

Main hoist lifting height 83 m (272 ft) above work deck lowering depth of auxiliary hoist up to 1,500 m (5,000 ft) below work deck at minimum radius.

Tandem Lift

Main hoist 8,100 t at 39 m (128 ft) radius.

Deck Load / Transit Speed

  • Deck load capacity 15 t/m²
  • Total deck load capacity 8,000 t
  • Transit speed with 8,000 t deck load 6 kn at 11.5 m (38 ft) draft.

Ballast System

Static and dynamic ballast system are both fully computer controlled. Ballast pump capacity 8,000 m³/hour. Dynamic ballast water handling 500 t/s.


Heerema Marine Contractors (HMC) has recently been the victim of a number of fraud attempts where law firms, purchase departments and potential recruits are fraudulently approached by individuals alleging to represent HMC. These attempts often originate from (but not limited to) Outlook, Hotmail, Gmail or .net addresses. For the avoidance of doubt: HMC’s domain name is hmc-heerema.com and HMC does not use the aforementioned e-mail addresses for any of its correspondence.

In case you have received any suspicious e-mails from the addresses above or any new addresses that you deem unusual or odd, please contact us immediately at communications@hmc-heerema.com, or call +31[0]71 579 9000 and ask to speak to the Communications Department.